| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 339 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 339 CCCXXXIX |
| Ab urbe condita | 1092 |
| Assyrian calendar | 5089 |
| Balinese saka calendar | 260–261 |
| Bengali calendar | −254 |
| Berber calendar | 1289 |
| Buddhist calendar | 883 |
| Burmese calendar | −299 |
| Byzantine calendar | 5847–5848 |
| Chinese calendar | 戊戌年 (Earth Dog) 3036 or 2829 — to — 己亥年 (Earth Pig) 3037 or 2830 |
| Coptic calendar | 55–56 |
| Discordian calendar | 1505 |
| Ethiopian calendar | 331–332 |
| Hebrew calendar | 4099–4100 |
| Hindu calendars | |
| - Vikram Samvat | 395–396 |
| - Shaka Samvat | 260–261 |
| - Kali Yuga | 3439–3440 |
| Holocene calendar | 10339 |
| Iranian calendar | 283 BP – 282 BP |
| Islamic calendar | 292 BH – 291 BH |
| Javanese calendar | 220–221 |
| Julian calendar | 339 CCCXXXIX |
| Korean calendar | 2672 |
| Minguo calendar | 1573 before ROC 民前1573年 |
| Nanakshahi calendar | −1129 |
| Seleucid era | 650/651 AG |
| Thai solar calendar | 881–882 |
| Tibetan calendar | 阳土狗年 (male Earth-Dog) 465 or 84 or −688 — to — 阴土猪年 (female Earth-Pig) 466 or 85 or −687 |
Year 339 (CCCXXXIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Constantius and Claudius (or, less frequently, year 1092 Ab urbe condita). The denomination 339 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.